KK Impact Tools
KO-KEN impact sockets are designed for use with powered impact wrenches. The combination of an impact wrench and impact socket can deliver greater torque to the head of a fastener than can be achieved with a manual wrench.
Impact sockets can be attached or detached on the LOCKING ADAPTOR for safety just by sliding the holder rather than using a pin and an O-ring. It can reduce the time to change a socket, especially when you need to use a variety of socket sizes.
![Ko-ken 10400A-4.1/2 3.1/2 Sq. Dr. Socket 4.1/2 6 point Length 182mm](http://www.freertool.com/cdn/shop/products/10400M__92560.1604818420_{width}x.jpg?v=1679491854)
Ko-ken 10400A-4.1/2 3.1/2 Sq. Dr. Socket 4.1/2 6 point Length 182mm
SKU: KK-10400A-4.1/2
MPN: 10400A-4.1/2
![Ko-ken 10400A-4.1/4 3.1/2 Sq. Dr. Socket 4.1/4 6 point Length 178mm](http://www.freertool.com/cdn/shop/products/10400M__92560.1604818420_c0c8f23a-654e-4108-8950-709dc3369d07_{width}x.jpg?v=1679491852)
Ko-ken 10400A-4.1/4 3.1/2 Sq. Dr. Socket 4.1/4 6 point Length 178mm
SKU: KK-10400A-4.1/4
MPN: 10400A-4.1/4
![Ko-ken 10400A-4.1/8 3.1/2 Sq. Dr. Socket 4.1/8 6 point Length 176mm](http://www.freertool.com/cdn/shop/products/10400M__92560.1604818420_307cbb25-f4a4-4097-bbe0-e67542ec5ad1_{width}x.jpg?v=1679491851)
Ko-ken 10400A-4.1/8 3.1/2 Sq. Dr. Socket 4.1/8 6 point Length 176mm
SKU: KK-10400A-4.1/8
MPN: 10400A-4.1/8
![Ko-ken 10400A-4.3/4 3.1/2 Sq. Dr. Socket 4.3/4 6 point Length 185mm](http://www.freertool.com/cdn/shop/products/10400M__92560.1604818420_262cc429-a1b6-4157-b0d2-a180d6b47928_{width}x.jpg?v=1679491849)
Ko-ken 10400A-4.3/4 3.1/2 Sq. Dr. Socket 4.3/4 6 point Length 185mm
SKU: KK-10400A-4.3/4
MPN: 10400A-4.3/4
![Ko-ken 10400A-4.3/8 3.1/2 Sq. Dr. Socket 4.3/8 6 point Length 180mm](http://www.freertool.com/cdn/shop/products/10400M__92560.1604818420_84f3bb6f-4e0b-498c-a123-5661f3e0e41d_{width}x.jpg?v=1679491848)
Ko-ken 10400A-4.3/8 3.1/2 Sq. Dr. Socket 4.3/8 6 point Length 180mm
SKU: KK-10400A-4.3/8
MPN: 10400A-4.3/8
![Ko-ken 10400A-4.5/8 3.1/2 Sq. Dr. Socket 4.5/8 6 point Length 183mm](http://www.freertool.com/cdn/shop/products/10400M__92560.1604818420_3f860093-59be-423a-af59-93cb65584f7e_{width}x.jpg?v=1679491846)
Ko-ken 10400A-4.5/8 3.1/2 Sq. Dr. Socket 4.5/8 6 point Length 183mm
SKU: KK-10400A-4.5/8
MPN: 10400A-4.5/8
![Ko-ken 10400A-4.7/8 3.1/2 Sq. Dr. Socket 4.7/8 6 point Length 190mm](http://www.freertool.com/cdn/shop/products/10400M__92560.1604818420_e9886ccd-a3d3-43ce-8a30-fc436d6a3a37_{width}x.jpg?v=1679491845)
Ko-ken 10400A-4.7/8 3.1/2 Sq. Dr. Socket 4.7/8 6 point Length 190mm
SKU: KK-10400A-4.7/8
MPN: 10400A-4.7/8
![Ko-ken 10400A-5 3.1/2 Sq. Dr. Socket 5 6 point Length 191mm](http://www.freertool.com/cdn/shop/products/10400M__92560.1604818420_d877507e-0509-4704-83c3-88084a62f458_{width}x.jpg?v=1679491843)
Ko-ken 10400A-5 3.1/2 Sq. Dr. Socket 5 6 point Length 191mm
SKU: KK-10400A-5
MPN: 10400A-5
![Ko-ken 10400A-5.1/2 3.1/2 Sq. Dr. Socket 5.1/2 6 point Length 205mm](http://www.freertool.com/cdn/shop/products/10400M__92560.1604818420_061a4c39-d18e-4098-9b79-b9ea79199076_{width}x.jpg?v=1679491842)
Ko-ken 10400A-5.1/2 3.1/2 Sq. Dr. Socket 5.1/2 6 point Length 205mm
SKU: KK-10400A-5.1/2
MPN: 10400A-5.1/2
![Ko-ken 10400A-5.1/4 3.1/2 Sq. Dr. Socket 5.1/4 6 point Length 198mm](http://www.freertool.com/cdn/shop/products/10400M__92560.1604818420_58e4916c-4f98-452a-8b99-4d6887a8fc7b_{width}x.jpg?v=1679491841)
Ko-ken 10400A-5.1/4 3.1/2 Sq. Dr. Socket 5.1/4 6 point Length 198mm
SKU: KK-10400A-5.1/4
MPN: 10400A-5.1/4
![Ko-ken 10400A-5.1/8 3.1/2 Sq. Dr. Socket 5.1/8 6 point Length 194mm](http://www.freertool.com/cdn/shop/products/10400M__92560.1604818420_63abe3c6-4307-4d50-8981-20a359096547_{width}x.jpg?v=1679491839)
Ko-ken 10400A-5.1/8 3.1/2 Sq. Dr. Socket 5.1/8 6 point Length 194mm
SKU: KK-10400A-5.1/8
MPN: 10400A-5.1/8
![Ko-ken 10400A-5.3/4 3.1/2 Sq. Dr. Socket 5.3/4 6 point Length 210mm](http://www.freertool.com/cdn/shop/products/10400M__92560.1604818420_94307502-63ae-4fea-b5ec-e820b29a1003_{width}x.jpg?v=1679491838)
Ko-ken 10400A-5.3/4 3.1/2 Sq. Dr. Socket 5.3/4 6 point Length 210mm
SKU: KK-10400A-5.3/4
MPN: 10400A-5.3/4
![Ko-ken 10400A-5.3/8 3.1/2 Sq. Dr. Socket 5.3/8 6 point Length 202mm](http://www.freertool.com/cdn/shop/products/10400M__92560.1604818420_236cdcae-5e8c-4221-aaca-972870d48f2b_{width}x.jpg?v=1679491836)
Ko-ken 10400A-5.3/8 3.1/2 Sq. Dr. Socket 5.3/8 6 point Length 202mm
SKU: KK-10400A-5.3/8
MPN: 10400A-5.3/8
![Ko-ken 10400A-5.5/8 3.1/2 Sq. Dr. Socket 5.5/8 6 point Length 208mm](http://www.freertool.com/cdn/shop/products/10400M__92560.1604818420_492bbc7b-745b-4262-a7b6-60595b991098_{width}x.jpg?v=1679491835)
Ko-ken 10400A-5.5/8 3.1/2 Sq. Dr. Socket 5.5/8 6 point Length 208mm
SKU: KK-10400A-5.5/8
MPN: 10400A-5.5/8
![Ko-ken 10400A-5.7/8 3.1/2 Sq. Dr. Socket 5.7/8 6 point Length 212mm](http://www.freertool.com/cdn/shop/products/10400M__92560.1604818420_c3e34583-9354-45f4-b08b-7771ddb8c8f0_{width}x.jpg?v=1679491833)
Ko-ken 10400A-5.7/8 3.1/2 Sq. Dr. Socket 5.7/8 6 point Length 212mm
SKU: KK-10400A-5.7/8
MPN: 10400A-5.7/8
![Ko-ken 10400A-6 3.1/2 Sq. Dr. Socket 6 6 point Length 214mm](http://www.freertool.com/cdn/shop/products/10400M__92560.1604818420_27ec00e1-d964-445d-8008-db7b67a8456b_{width}x.jpg?v=1679491832)
Ko-ken 10400A-6 3.1/2 Sq. Dr. Socket 6 6 point Length 214mm
SKU: KK-10400A-6
MPN: 10400A-6
![Ko-ken 10400A-6.1/2 3.1/2 Sq. Dr. Socket 6.1/2 6 point Length 224mm](http://www.freertool.com/cdn/shop/products/10400M__92560.1604818420_59f4cf73-26db-4218-b820-0f2c7e4e5903_{width}x.jpg?v=1679491831)
Ko-ken 10400A-6.1/2 3.1/2 Sq. Dr. Socket 6.1/2 6 point Length 224mm
SKU: KK-10400A-6.1/2
MPN: 10400A-6.1/2
![Ko-ken 10400A-6.1/4 3.1/2 Sq. Dr. Socket 6.1/4 6 point Length 218mm](http://www.freertool.com/cdn/shop/products/10400M__92560.1604818420_fbb72984-5540-4f9d-a5af-9b87022563a2_{width}x.jpg?v=1679491829)
Ko-ken 10400A-6.1/4 3.1/2 Sq. Dr. Socket 6.1/4 6 point Length 218mm
SKU: KK-10400A-6.1/4
MPN: 10400A-6.1/4
![Ko-ken 10400A-6.1/8 3.1/2 Sq. Dr. Socket 6.1/8 6 point Length 216mm](http://www.freertool.com/cdn/shop/products/10400M__92560.1604818420_95b9c8e2-e1d4-4be0-b01f-d281866a1cfe_{width}x.jpg?v=1679491828)
Ko-ken 10400A-6.1/8 3.1/2 Sq. Dr. Socket 6.1/8 6 point Length 216mm
SKU: KK-10400A-6.1/8
MPN: 10400A-6.1/8
![Ko-ken 10400A-6.3/4 3.1/2 Sq. Dr. Socket 6.3/4 6 point Length 228mm](http://www.freertool.com/cdn/shop/products/10400M__92560.1604818420_6240ea64-e16c-49bd-8c0f-2ac609b79963_{width}x.jpg?v=1679491826)
Ko-ken 10400A-6.3/4 3.1/2 Sq. Dr. Socket 6.3/4 6 point Length 228mm
SKU: KK-10400A-6.3/4
MPN: 10400A-6.3/4
![Ko-ken 10400A-6.3/8 3.1/2 Sq. Dr. Socket 6.3/8 6 point Length 221mm](http://www.freertool.com/cdn/shop/products/10400M__92560.1604818420_219a5398-cbe2-4d8c-951e-2c2a295e74f9_{width}x.jpg?v=1679491825)
Ko-ken 10400A-6.3/8 3.1/2 Sq. Dr. Socket 6.3/8 6 point Length 221mm
SKU: KK-10400A-6.3/8
MPN: 10400A-6.3/8
![Ko-ken 10400A-6.5/8 3.1/2 Sq. Dr. Socket 6.5/8 6 point Length 226mm](http://www.freertool.com/cdn/shop/products/10400M__92560.1604818420_c1cb01ed-bee4-403e-a93e-1c411be36d08_{width}x.jpg?v=1679491823)
Ko-ken 10400A-6.5/8 3.1/2 Sq. Dr. Socket 6.5/8 6 point Length 226mm
SKU: KK-10400A-6.5/8
MPN: 10400A-6.5/8
![Ko-ken 10400A-6.7/8 3.1/2 Sq. Dr. Socket 6.7/8 6 point Length 230mm](http://www.freertool.com/cdn/shop/products/10400M__92560.1604818420_8cb5a155-20d0-410a-bed3-10f00368e51b_{width}x.jpg?v=1679491822)
Ko-ken 10400A-6.7/8 3.1/2 Sq. Dr. Socket 6.7/8 6 point Length 230mm
SKU: KK-10400A-6.7/8
MPN: 10400A-6.7/8
![Ko-ken 10400A-7 3.1/2 Sq. Dr. Socket 7 6 point Length 232mm](http://www.freertool.com/cdn/shop/products/10400M__92560.1604818420_68dde986-2a0a-420b-bf7b-38fea50ee2ee_{width}x.jpg?v=1679491820)
Ko-ken 10400A-7 3.1/2 Sq. Dr. Socket 7 6 point Length 232mm
SKU: KK-10400A-7
MPN: 10400A-7